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Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Conference papers
Kneading Technology to Process Recycled Fiber Pulps and Aggl
Kneading Technology to Process Recycled Fiber Pulps and Agglomerate Stickies to Improve Stickies Removal Efficiency by Screening, 2016 PEERS
Conference papers
Innovative Technology Training Strategy for the Pulp, Paper
Innovative Technology Training Strategy for the Pulp, Paper and Chemical Process Industries, 2016 PEERS
Conference papers
Wastewater Air Emissions Modeling Utilizing Toxchemÿ 4.3, 20
Wastewater Air Emissions Modeling Utilizing Toxchemÿ 4.3, 2016 PEERS
Conference papers
The Application of Near Infrared Digital Image Analysis for
The Application of Near Infrared Digital Image Analysis for Deinking Evaluation, 2017PEERS
Conference papers
Impact of Dissolved Lignin in Peroxide bleaching, 2017PEERS
Impact of Dissolved Lignin in Peroxide bleaching, 2017PEERS
Conference papers
Fiber Reinforced Plastic Piping Systems and Pipe Supports for Reliable Performance, 19PEERS
Fiber Reinforced Plastic Piping Systems and Pipe Supports for Reliable Performance, 19PEERS
Conference papers
Performance of Structural Materials in Biomass Liquefaction Environments, 19PEERS
Performance of Structural Materials in Biomass Liquefaction Environments, 19PEERS
Journal articles
Magazine articles
Combatting lime kiln ringing problems at the Arauco Constitución mill, TAPPI Journal July 2020
ABSTRACT: The lime kiln at the Arauco Constitución mill experienced severe ringing problems requiring it to be shut down for ring removal every 3 to 6 months. The mill controlled the problems by blasting ring deposits off during operation with its existing industrial shotgun and a newly installed Cardox liquid carbon dioxide (CO2) cartridge system. Various ring blasting procedures were tested to determine the optimum ring location and thickness to blast; the optimum depth to insert the CO2 cartridge into the kiln; and the most effective blasting frequency and sequence to employ. The best strategy was found to be the weekly blasting operation that alternated between the liquid CO2 cartridge and the industrial shotgun, with the CO2 cartridge inserted into the ring mass, 20 cm (8 in.) away from the refractory brick surface, and the shotgun aimed at rings at about 28 m (92 ft) from the kiln discharge end. With each blasting event removing considerably more rings than before, it takes a longer time for rings to rebuild, allowing the kiln to run continuously between annual maintenance shutdowns with only a few short (< 4 h) downtimes for ring removal. This substantially reduces the costs associated with ring removal and lime replacement during unscheduled shutdowns.
Journal articles
Magazine articles
Effects of a PFI refiner’s operational parameters on the swellability of recycled fiber, TAPPI Journal May 2020
ABSTRACT: This paper presents data on the effects of operational parameters (number of revolutions, linear pressure, and gap) of the PFI refiner on the swellability of recycled fiber, which was characterized by water retention value (WRV). The results showed that the increase of recycled fiber’s WRV was proportional to the number of revolutions and the linear pressure, but inversely proportional to the gap. The mathematical relation between these parameters and the fiber WRV could be described by an empirical model for gaps greater than 0.1 mm. Scanning electron microscopic images of fiber morphology showed that the basic framework of fibers could be maintained with the gap greater than 0.1 mm, but was destroyed with smaller gaps. This model provides a technical reference for quantitative control of refining treatment and an effective method for improving recycled fiber quality.